Two tips, Firstly make sure you have no distractions. I simply can not study at home because between the computer, tv, books or simply just lying in bed there is to much to distract me. I tend to go somewhere like parks or the beach to study, since I have to put in the effort to travel there I also seem to work harder. It also helps to work out how you best learn, audio, visual or kinesthetc (and maybe another one).